Process for making kraft liner board
Foreign production of kraft paperboard raw materials are usually used in 100% of the unbleached kraft pulp, the unbleached kraft pulp and Hanging noodles, with waste paper pulp as the core layer and the bottom layer of the domestic wood resources, so using 40% ~ 50% Hanging noodles with wheat straw pulp, wood pulp, straw pulp, straw pulp, bagasse pulp, mango pulp etc. one or two kinds of mixture as the core layer and the bottom layer, and the development of 100N bamboo pulp, or with 60% ~ 70% bamboo pulp and straw pulp or waste paper pulp or pulp with 20% cotton stalk pulp and Kenaf pulp and papermaking, and finally after sizing and calendering kraft paperboard, the sizing and papermaking, finally after sizing and calendering kraft paperboard, the sizing degree is above 0.75mm, so there is water resistant, moisture-proof performance strong.
